Cov txheej txheem:
Video: Dab tsi yog cov khoom siv hauv distillation?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2024-01-18 08:15
Khoom siv
- 2 Erlenmeyer khob.
- 1 1-qhov stopper uas haum lub khob.
- 1 2-qhov stopper uas haum rau lub raj mis.
- Yas tubing.
- Luv luv ntawm iav tubing .
- Txias dej da dej (txhua lub thawv uas tuaj yeem tuav ob qho tib si txias dej thiab ib khob dej)
- Boiling nti (ib yam khoom uas ua rau cov kua dej npau npau ntau dua thiab sib npaug)
- Kub phaj .
Ntawm no, dab tsi cov cuab yeej siv hauv distillation?
Cov cuab yeej siv nyob rau hauv distillation , qee zaum hu ua ib qho tseem, muaj qhov tsawg kawg ntawm ib lub reboiler lossis lub lauj kaub uas cov khoom siv tau rhuab, lub condenser uas cov cua sov vapor txias rov qab mus rau lub xeev cov kua, thiab lub receiver uas cov concentrated los yog purified kua., npe distillate , yog sau
Kuj Paub, 3 kauj ruam ntawm distillation yog dab tsi? Zuag qhia tag nrho txheej txheem ntawm cawv distillation tuaj yeem suav nrog 3 qhov chaw: fermentation, Distillation , thiab Ua tiav.
Ib yam li ntawd, tib neeg nug, dab tsi yog hom distillation?
Qee yam tseem ceeb ntawm distillation muaj xws li:
- Yooj yim distillation.
- Fractional distillation.
- Chav distillation.
- Nqus distillation.
- Cua-sensitive nqus distillation.
- Txoj kev luv distillation.
- Zone distillation.
Yuav ua li cas distillation?
Txoj Kev 2 ntawm 2: Distilling nrog Lab Materials
- Paub qhov kub ntawm cov khoom koj xav distilled.
- Ncuav cov kua rau hauv ib lub lauj kaub distilling.
- Muab lub khob distilling tso rau ntawm qhov chaw tshav kub.
- Txuas lub condenser.
- Txuas lub "npua" yog tias koj ua lub tshuab nqus tsev distillation.
Pom zoo:
Dab tsi yog lub cev khoom siv hauv distillation los cais?
DISTILLATION yog kev ua kom huv ntawm cov kua los ntawm cua sov rau nws qhov kub thiab txias, ua rau vaporization, thiab tom qab ntawd condensing cov vapors rau hauv cov kua hauv lub xeev thiab sau cov kua. Kev sib cais ntawm ob lossis ntau dua cov kua yuav tsum muaj qhov sib txawv ntawm qhov kub thiab txias
Cov khoom twg yog cov piv txwv ntawm cov khoom siv tshuaj xyuas txhua yam uas siv?
Piv txwv ntawm cov khoom siv tshuaj muaj xws li flammability, toxicity, acidity, reactivity (ntau hom), thiab kub ntawm combustion. Hlau, piv txwv li, ua ke nrog oxygen nyob rau hauv lub xub ntiag ntawm dej los ua xeb; chromium tsis oxidize (Daim duab 2)
Dab tsi yog qhov sib npaug siv los xam tag nrho cov khoom siv hluav taws xob siv?
Cov mis uas txuas lub zog thiab lub zog yog: Zog = Lub Zog x Sijhawm. Chav tsev ntawm lub zog yog joule, lub zog ntawm lub zog yog watt, thiab chav tsev ntawm lub sijhawm yog qhov thib ob
Yuav ua li cas cov khoom siv caj ces hauv txhua lub xov tooj tshiab tsim los ntawm kev faib tawm ntawm tes sib piv nrog cov khoom siv caj ces hauv lub xov tooj qub?
Mitosis tshwm sim nyob rau hauv ob lub nuclei uas zoo tib yam rau thawj nucleus. Yog li, ob lub hlwb tshiab tsim tom qab kev faib tawm ntawm tes muaj tib yam khoom siv caj ces. Thaum lub sij hawm mitosis, chromosomes condense los ntawm chromatin. Thaum saib nrog lub microscope, chromosomes pom nyob rau hauv lub nucleus
Dab tsi yog qhov txawv ntawm cov khoom siv organic thiab cov khoom siv organic?
Dab tsi yog qhov txawv ntawm cov khoom siv organic thiab organic teeb meem? Organic khoom yog txhua yam uas tseem muaj sia nyob thiab tam sim no nyob rau hauv lossis hauv av. Rau nws los ua cov organic teeb meem, nws yuav tsum tau decomposed rau hauv humus. Humus yog cov khoom siv organic uas tau hloov dua siab tshiab los ntawm cov kab mob mus rau lub xeev tsis muaj zog